3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_replace_callback('~(?:^|_)[A-Z]\K[A-Z]+~', function($m){ return strtolower($m[0]);}, 'FIRST_SECOND_THIRD');

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.5.10.0090.01016.71
8.5.00.0100.01220.08
8.4.150.0020.00014.05
8.4.140.0110.00817.58
8.4.130.0110.00918.79
8.4.120.0080.01218.58
8.4.110.0050.00320.70
8.4.100.0110.01017.97
8.4.90.0060.00220.39
8.4.80.0120.00720.79
8.4.70.0020.00618.73
8.4.60.0070.00820.63
8.4.50.0050.00320.59
8.4.40.0080.00418.04
8.4.30.0140.00719.77
8.4.20.0180.00320.35
8.4.10.0090.00919.07
8.3.280.0140.01018.70
8.3.270.0120.00816.51
8.3.260.0140.00616.86
8.3.250.0090.01116.92
8.3.240.0100.00716.55
8.3.230.0080.01016.65
8.3.220.0030.00620.64
8.3.210.0070.00116.53
8.3.200.0040.00516.65
8.3.190.0070.00317.18
8.3.180.0050.00318.97
8.3.170.0150.00416.99
8.3.160.0090.00916.61
8.3.150.0120.00616.91
8.3.140.0080.00016.60
8.3.130.0040.01518.54
8.3.120.0080.00018.95
8.3.110.0080.00016.62
8.3.100.0030.00616.50
8.3.90.0050.00326.77
8.3.80.0070.00318.43
8.3.70.0160.00616.61
8.3.60.0110.01118.43
8.3.50.0120.00517.36
8.3.40.0120.00319.11
8.3.30.0150.00018.67
8.3.20.0040.00423.53
8.3.10.0080.00021.90
8.3.00.0000.01021.89
8.2.290.0100.00817.41
8.2.280.0100.00818.78
8.2.270.0110.00716.69
8.2.260.0090.00917.50
8.2.250.0060.00316.97
8.2.240.0170.00016.82
8.2.230.0150.00020.94
8.2.220.0040.00424.06
8.2.210.0040.01126.77
8.2.200.0090.00017.00
8.2.190.0090.00918.54
8.2.180.0140.00725.92
8.2.170.0110.00418.97
8.2.160.0070.00721.08
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00420.75
8.2.110.0000.00921.00
8.2.100.0040.00718.22
8.2.90.0040.00419.04
8.2.80.0050.00317.97
8.2.70.0030.00617.93
8.2.60.0000.01118.16
8.2.50.0030.00618.10
8.2.40.0060.00319.47
8.2.30.0000.00819.38
8.2.20.0000.00718.13
8.2.10.0080.00018.08
8.2.00.0050.00319.44
8.1.330.0140.00616.23
8.1.320.0060.00317.86
8.1.310.0030.01016.69
8.1.300.0080.00018.18
8.1.290.0080.00330.84
8.1.280.0040.01125.92
8.1.270.0030.00623.97
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0060.00322.54
8.1.230.0030.00720.31
8.1.220.0080.00017.79
8.1.210.0030.00518.77
8.1.200.0100.00017.35
8.1.190.0030.00620.12
8.1.180.0050.00318.10
8.1.170.0050.00318.68
8.1.160.0000.00722.16
8.1.150.0000.00818.73
8.1.140.0050.00222.18
8.1.130.0040.00420.10
8.1.120.0050.00217.54
8.1.110.0070.00017.60
8.1.100.0040.00417.44
8.1.90.0000.00817.45
8.1.80.0070.00017.52
8.1.70.0000.00717.47
8.1.60.0040.00417.67
8.1.50.0050.00317.44
8.1.40.0050.00317.54
8.1.30.0030.00617.71
8.1.20.0120.00017.81
8.1.10.0020.00517.54
8.1.00.0000.00817.54
8.0.300.0080.00018.77
8.0.290.0070.00016.75
8.0.280.0030.00318.33
8.0.270.0040.00417.22
8.0.260.0030.00320.19
8.0.250.0070.00016.98
8.0.240.0000.00617.00
8.0.230.0030.00316.92
8.0.220.0000.00716.90
8.0.210.0040.00416.92
8.0.200.0030.00317.09
8.0.190.0090.00017.03
8.0.180.0000.00816.93
8.0.170.0060.00316.96
8.0.160.0000.00716.83
8.0.150.0080.00016.81
8.0.140.0040.00416.84
8.0.130.0030.00313.42
8.0.120.0030.00516.99
8.0.110.0000.00716.89
8.0.100.0040.00416.85
8.0.90.0050.00216.78
8.0.80.0140.00517.02
8.0.70.0040.00416.84
8.0.60.0070.00017.03
8.0.50.0040.00417.01
8.0.30.0120.00617.36
8.0.20.0160.00517.40
8.0.10.0040.00417.11
8.0.00.0100.00916.84
7.4.330.0000.00516.86
7.4.320.0060.00016.73
7.4.300.0000.00616.77
7.4.290.0000.00716.57
7.4.280.0050.00216.65
7.4.270.0040.00416.75
7.4.260.0060.00316.74
7.4.250.0000.00716.72
7.4.240.0070.00016.57
7.4.230.0070.00016.80
7.4.220.0050.00316.88
7.4.210.0050.01216.68
7.4.200.0040.00416.64
7.4.160.0100.00716.65
7.4.140.0110.00817.86
7.4.130.0070.01016.58
7.4.120.0110.00916.64
7.4.110.0160.00316.72
7.4.100.0090.01116.72
7.4.90.0090.00916.61
7.4.80.0090.00919.39
7.4.70.0090.00916.72
7.4.60.0070.01016.57
7.4.50.0030.00916.50
7.4.40.0090.00916.54
7.4.00.0090.00615.23
7.3.330.0030.00313.41
7.3.320.0060.00013.39
7.3.310.0000.00716.36
7.3.300.0070.00016.46
7.3.290.0040.00216.29
7.3.280.0070.01316.35
7.3.260.0140.00716.64
7.3.240.0100.00716.57
7.3.230.0030.01716.41
7.3.210.0150.00316.64
7.3.200.0030.01516.70
7.3.190.0080.00816.52
7.3.180.0110.00416.52
7.3.170.0070.01116.52
7.3.160.0060.01116.43
7.2.330.0110.00616.70
7.2.320.0140.00516.81
7.2.310.0070.01116.84
7.2.300.0150.00316.76
7.2.290.0030.01316.92
7.2.120.0340.01014.86
7.2.110.0400.00314.84
7.2.100.0510.00714.60
7.2.90.1430.01015.03
7.2.80.0470.01015.15
7.2.70.0430.00715.28
7.2.60.0520.01315.33
7.2.50.0430.00615.12
7.2.40.0550.01015.29
7.2.30.0580.01015.21
7.2.20.0490.00314.96
7.2.10.0530.01015.26
7.2.00.0600.00714.95
5.6.380.0130.00414.46

preferences:
30.94 ms | 403 KiB | 5 Q